diff --git a/sao/CHANGELOG b/sao/CHANGELOG
index 53112828e3..beabd85b0c 100644
--- a/sao/CHANGELOG
+++ b/sao/CHANGELOG
@@ -1,3 +1,4 @@
+* Use relative path for server requests
 * Use cookie to store session
 * Move the logout entry and add a help entry to the notification menu
 * Add visual hint on widget of modified field
diff --git a/sao/src/rpc.js b/sao/src/rpc.js
index 5e3eb473c9..8b1b157984 100644
--- a/sao/src/rpc.js
+++ b/sao/src/rpc.js
@@ -178,7 +178,7 @@
                 'params': params
             })),
             'dataType': 'json',
-            'url': '/' + (session.database || '') + '/',
+            'url': (session.database || '.') + '/',
             'type': 'post',
             'complete': [function() {
                 Sao.common.processing.hide(timeoutID);
diff --git a/sao/src/sao.js b/sao/src/sao.js
index 04642cd808..fd9566516c 100644
--- a/sao/src/sao.js
+++ b/sao/src/sao.js
@@ -451,11 +451,11 @@ var Sao = {
     Sao.set_url = function(path, name) {
         var session = Sao.Session.current_session;
         if (session) {
-            var url = '#' + session.database;
+            var url = session.database;
             if (path) {
                 url += '/' + path;
             }
-            window.location = url;
+            window.location.hash = url;
         }
         Sao.set_title(name);
     };
diff --git a/sao/src/session.js b/sao/src/session.js
index e966a0c0f0..143612e926 100644
--- a/sao/src/session.js
+++ b/sao/src/session.js
@@ -58,7 +58,7 @@
                 'contentType': 'application/json',
                 'data': JSON.stringify({}),
                 'dataType': 'json',
-                'url': `/${this.database}/session/logout`,
+                'url': `${this.database}/session/logout`,
                 'type': 'post',
             });
             this.unstore();
@@ -189,7 +189,7 @@
                 'params': []
             }),
             'dataType': 'json',
-            'url': '/',
+            'url': '.',
             'type': 'post',
             'complete': [function() {
                 Sao.common.processing.hide(timeoutID);
@@ -295,7 +295,7 @@
                     dfd.resolve(session);
                     dialog.modal.remove();
                     if (database_url() != database) {
-                        window.location = '#' + database;
+                        window.location.hash = database;
                     }
                 }, function() {
                     disable_form(false);
@@ -314,10 +314,11 @@
                 return;
             }
             disable_form();
-            var host = window.location.protocol + '//' + window.location.host;
-            var next = new URL(host + '/');
+            const base = (
+                window.location.protocol + '//' + window.location.host + window.location.pathname);
+            var next = new URL(base);
             next.searchParams.append('login_service', evt.data);
-            var url = new URL(host + '/' + database + evt.data);
+            var url = new URL(base + database + evt.data);
             url.searchParams.append('next', next.href);
             var service_window = window.open(url.href, '_blank', 'popup=1');
             const timer = window.setInterval(() => {
@@ -330,7 +331,7 @@
                         dfd.resolve(session);
                         dialog.modal.remove();
                         if (database_url() != database) {
-                            window.location = '#' + database;
+                            window.location.hash = database;
                         }
                     } else {
                         disable_form(false);
@@ -449,7 +450,7 @@
                 'contentType': 'application/json',
                 'data': JSON.stringify(data),
                 'dataType': 'json',
-                'url': `/${this.session.database}/session/login`,
+                'url': `${this.session.database}/session/login`,
                 'type': 'post',
                 'complete': [function() {
                     Sao.common.processing.hide(timeoutID);
@@ -601,7 +602,7 @@
                 'params': []
             }),
             'dataType': 'json',
-            'url': '/',
+            'url': '.',
             'type': 'post',
             'complete': [function() {
                 Sao.common.processing.hide(timeoutID);
@@ -623,7 +624,7 @@
                 'params': []
             }),
             'dataType': 'json',
-            'url': '/',
+            'url': '.',
             'type': 'post',
             'complete': [function() {
                 Sao.common.processing.hide(timeoutID);
diff --git a/sao/src/view/form.js b/sao/src/view/form.js
index 9d5ae604f4..cc136f6e86 100644
--- a/sao/src/view/form.js
+++ b/sao/src/view/form.js
@@ -5010,7 +5010,7 @@ function eval_pyson(value){
             if (!record || (record.id < 0)) {
                 uri = '';
             } else {
-                uri = '/' + record.model.session.database +
+                uri = record.model.session.database +
                     '/ir/html/' + record.model.name + '/' + record.id + '/' +
                     this.field_name;
                 uri += '?language=' + encodeURIComponent(
diff --git a/sao/src/window.js b/sao/src/window.js
index 7cb0a494dd..3de6dd0185 100644
--- a/sao/src/window.js
+++ b/sao/src/window.js
@@ -2429,7 +2429,7 @@
             query_string = query_string.map(function(param) {
                 return param.map(encodeURIComponent).join('=');
             }).join('&');
-            this.button_url.attr('href', '/' + path.join('/') + '?' + query_string);
+            this.button_url.attr('href', path.join('/') + '?' + query_string);
         },
     });